We also today probably have the best surveillance tools in all of recorded history. Modern phones mean that anyone on the planet can have their location tracked in real time, and if exploited (perhaps by a malicious update to the OS or apps to add a backdoor), the most intimate information about the user can be harvested in bulk, or they can be watched and listened to, without being served a warrant, even in their own home. These sorts of things were not possible a hundred years ago. They weren't really possible only a generation ago.